Small, uniform, and rarely collected-an integrated taxonomic revision of Afromicracis bark beetles (Coleoptera, Scolytinae)
Author
Jordal, Bjarte
text
Zootaxa
2021
2021-06-03
4981
1
70
88
journal article
5929
10.11646/zootaxa.4981.1.3
2a6a68b5-abec-4b2f-87b8-91cc5e0f1e78
1175-5326
4897574
72B8C187-2685-475E-A20F-60830FF606A0
Afromicracis crinita
Jordal
,
sp. nov.
urn:lsid:zoobank.org:act:
EDC30BC3-6338-40BD-A7F8-6D1BA6ACBDC7
(
Figs 3, 6, 9
)
Type material.
Holotype
, sex?
South Africa
,
West
Cape
,
Wilderness NP
,
Ebbe Flow
[GIS:
-33.980
,
22.613
], ex thorny liana,
2.Nov.2006
,
B. Jordal
leg.
Paratypes
(12): same data as holotype
.
Holotype
and
five paratypes
in
SAMC
,
five paratypes
in
ZMUB
, two in
NHMW
.
Diagnosis.
This is the only species in the genus with mixed shorter and longer hair-like to bristle-like interstrial setae and hair-like pronotal setae.
Description, female.
Length
1.2–1.5 mm
, 2.2–2.5 × as long as wide; colour brown.
Frons
flattened, smooth on central half, finely granulated above, vestiture of scant recumbent setae. Eyes separated above by 2.5–2.7 × their width; antennal scapus with scant dorsal setae; club finely pilose, a fine procurved suture on apical third.
Pronotum
distinctly hunchbacked, anterior two-thirds with asperities, concentric rows in central area, asperities increasingly separated toward anterior margin, surface shiny; vestiture consisting of hair-like setae.
Elytral
striae not impressed, interstriae finely granulated on posterior half; vestiture consisting of erect hair-like or bristle-like setae in uniseriate rows, setae near lateral margins longer; strial setae fine, short, recumbent.
Ventrites.
Vestiture on meso- and metaventrites consisting of long, unifid setae, each longer than scapus.
Legs.
Protibiae with three socketed denticles at lateral and apical margins.
Male.
Externally similar to female in all aspects.
Etymology.
The name is a Latin feminine nominal adjective, meaning long-haired, referring to the rather long and thin interstrial setae, particularly near lateral margin, compared to other species in the genus.
Distribution and biology.
South Africa
. Only known from the
type
locality in the
Western Cape province
where it was dissected from a dry thorny liana and from a twig of
Scolopia
(Salicaceae)
. One male and
one female
at the early stage of colonization cut transverse tunnels under bark. Three early broods were located, consisting of 5, 8, and
11 eggs
.